Blizzard, you are really losing your customers one by one.
After the maintenance, couldn’t play at all.
My Xbox series X is just stuck right at the loading screen (the big Lilith) and won’t go further any.
I applied a ticket with the problem and received a funny response from a “GM” which helped nothing at all. As the following:
Greetings,
Thank you for contacting Blizzard Customer Support!
I’m Game Master Haecusedal, happy to answer your request.
First of all, I sincerely thank you for your patience with the waiting times.
Following your message, I understand that your game is stuck on loading screen on Xbox.
As this is not a known issue, I therefore advise you to try re-installing the game, if that doesn’t fix it for you, you can try to consult our technical forums :
A lot of articles can help you to find and troubleshoot the situation that you encounter.
Again, thank you for your patience. I hope this clears everything up for you and if you have any other requests, feel free to contact us at anytime 
Kind regards,
GM Haecusedal
Blizzard Customer Support